Analysis

  • max time kernel
    95s
  • max time network
    115s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    17-12-2024 18:28

General

  • Target

    598653d4bb43c79465a9334a2cd93ff4006ca9bc90c804ab7fd0bae633497d1f.dll

  • Size

    324KB

  • MD5

    8788eea4f1adf87bf98b8e7b262c712b

  • SHA1

    ffcdfcae82daa136a6ddb6ffd2c62fd3ad6030b0

  • SHA256

    598653d4bb43c79465a9334a2cd93ff4006ca9bc90c804ab7fd0bae633497d1f

  • SHA512

    8d9c27bde5449a281723e8f08abec736067799c56f99f910adc94436e37d2775df3f1656561ff33a0aa394067647f3db9607d84ba9ad1d3f6d3ed8d674b7355a

  • SSDEEP

    6144:lMJOWK4l0wqOVq1DuGwH5ZIzE1BN2hcw//JI:l2OWK4llsux5ZEE1qVhI

Malware Config

Signatures

  • Ramnit

    Ramnit is a versatile family that holds viruses, worms, and Trojans.

  • Ramnit family
  • Executes dropped EXE 2 IoCs
  • Drops file in System32 directory 1 IoCs
  • UPX packed file 12 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Program Files directory 3 IoCs
  • Program crash 1 IoCs
  • System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies Internet Explorer settings 1 TTPs 55 IoCs
  • Suspicious behavior: EnumeratesProcesses 16 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of UnmapMainImage 2 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Windows\system32\rundll32.exe
    rundll32.exe C:\Users\Admin\AppData\Local\Temp\598653d4bb43c79465a9334a2cd93ff4006ca9bc90c804ab7fd0bae633497d1f.dll,#1
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4164
    • C:\Windows\SysWOW64\rundll32.exe
      rundll32.exe C:\Users\Admin\AppData\Local\Temp\598653d4bb43c79465a9334a2cd93ff4006ca9bc90c804ab7fd0bae633497d1f.dll,#1
      2⤵
      • Drops file in System32 directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:4276
      • C:\Windows\SysWOW64\rundll32mgr.exe
        C:\Windows\SysWOW64\rundll32mgr.exe
        3⤵
        • Executes dropped EXE
        • Drops file in Program Files directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of UnmapMainImage
        • Suspicious use of WriteProcessMemory
        PID:1064
        • C:\Program Files (x86)\Microsoft\WaterMark.exe
          "C:\Program Files (x86)\Microsoft\WaterMark.exe"
          4⤵
          • Executes dropped EXE
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of UnmapMainImage
          • Suspicious use of WriteProcessMemory
          PID:3980
          • C:\Windows\SysWOW64\svchost.exe
            C:\Windows\system32\svchost.exe
            5⤵
              PID:3216
              • C:\Windows\SysWOW64\WerFault.exe
                C:\Windows\SysWOW64\WerFault.exe -u -p 3216 -s 204
                6⤵
                • Program crash
                PID:3036
            • C:\Program Files\Internet Explorer\iexplore.exe
              "C:\Program Files\Internet Explorer\iexplore.exe"
              5⤵
              • Modifies Internet Explorer settings
              • Suspicious use of FindShellTrayWindow
              • Suspicious use of SetWindowsHookEx
              • Suspicious use of WriteProcessMemory
              PID:1900
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:1900 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:1740
            • C:\Program Files\Internet Explorer\iexplore.exe
              "C:\Program Files\Internet Explorer\iexplore.exe"
              5⤵
              • Modifies Internet Explorer settings
              • Suspicious use of FindShellTrayWindow
              • Suspicious use of SetWindowsHookEx
              • Suspicious use of WriteProcessMemory
              PID:4460
              • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
                "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4460 CREDAT:17410 /prefetch:2
                6⤵
                • System Location Discovery: System Language Discovery
                • Modifies Internet Explorer settings
                • Suspicious use of SetWindowsHookEx
                PID:2232
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3216 -ip 3216
      1⤵
        PID:4028

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

        Filesize

        471B

        MD5

        641fd00a680e2a2b7c46da9f49d4ac01

        SHA1

        91342c03f46164a5ffba758b6201387912e09026

        SHA256

        69b70d73aed768e709b4e26268d4bfbb349d3ed2d7fc7bba042a347b29f1062d

        SHA512

        004e47e9e0623bf782ad71418257088902bec47d213027287c46393d7a413d69a69fd213df1781d3c49ddde689943d5c5f3ff844fb9cc81c7eeaf331b8a4344f

      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

        Filesize

        404B

        MD5

        ce511ceb951eafa787d92190cd0e6927

        SHA1

        53c18f780e27bf5be37e53cfd399b8f527ed6619

        SHA256

        02327e1819fb0a74e0ce992998995e65f98babab5e31328ee195bd3b454466a3

        SHA512

        9693d4a9e435349e7b0dcf4991b086e8b09b531e36ccc5920de8e33f751335d222e088b6729e51a257f0e1628eb87b78faecbaf6084d1f643a19f1961ea73a89

      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\7423F88C7F265F0DEFC08EA88C3BDE45_AA1E8580D4EBC816148CE81268683776

        Filesize

        404B

        MD5

        a0ba797e86f0389ccbb5cfa2ffdec2b6

        SHA1

        813acb8e8ea4794bb2446d2200d536547ede3573

        SHA256

        a0f4895a15f33f277b8e2c9cf381cd9d29fae9ec272b0b0f4be7f3847f9c6dcb

        SHA512

        443c7edb24455eb0af38078ceb3acd0c383778cc241e1799cafb5f413938331115b799647f15adbf7a8c6c269ef86957f70aced583101416f8d536c6618ce6f5

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{C44A52B3-BCA4-11EF-ADF2-CAF61997B0B0}.dat

        Filesize

        5KB

        MD5

        33a198b0824e183673e3e4dfcbb1a05a

        SHA1

        ee4f7263b82789bfadc7faf8834130a72e3d3d52

        SHA256

        6a361c82c65749ff3517fd75b38bbbc9b242270d29a9b5f8eff31065afe13042

        SHA512

        b9774f40211a66728fc04500f5a68644f633e29ef2d6de1b1d3e27e11af6a370fce67702aa7fc62c374baa107e607204368bde2366dcdcc8ec2cdd1947d4efc9

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\Recovery\High\Active\RecoveryStore.{C44CB53C-BCA4-11EF-ADF2-CAF61997B0B0}.dat

        Filesize

        4KB

        MD5

        dd132d3108cdadbac3d973dd851fd382

        SHA1

        64f2d0ccd6eece7e91a026aa18d91e0c2fb738f4

        SHA256

        921f1622889ccf3daece0f03b237698aa371d74097939112c132b4e4db90f039

        SHA512

        4985eed3243c73f0eb46257e33c4fcb5e7ec36ba19f23ea834ccbd52b33967e0021905f88cef75568835dca32465c4bac2dd35e3505cbacf79d198614ff8ea92

      • C:\Users\Admin\AppData\Local\Microsoft\Internet Explorer\VersionManager\verF155.tmp

        Filesize

        15KB

        MD5

        1a545d0052b581fbb2ab4c52133846bc

        SHA1

        62f3266a9b9925cd6d98658b92adec673cbe3dd3

        SHA256

        557472aeaebf4c1c800b9df14c190f66d62cbabb011300dbedde2dcddd27a6c1

        SHA512

        bd326d111589d87cd6d019378ec725ac9ac7ad4c36f22453941f7d52f90b747ede4783a83dfff6cae1b3bb46690ad49cffa77f2afda019b22863ac485b406e8d

      • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\PGH3GSHW\suggestions[1].en-US

        Filesize

        17KB

        MD5

        5a34cb996293fde2cb7a4ac89587393a

        SHA1

        3c96c993500690d1a77873cd62bc639b3a10653f

        SHA256

        c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

        SHA512

        e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

      • C:\Windows\SysWOW64\rundll32mgr.exe

        Filesize

        173KB

        MD5

        f603c2d3a1c6b4f856feca3d64d7cc40

        SHA1

        dc51f92df6a4556aec378dd3d9d9f9a2c47daf54

        SHA256

        56bac5d625d087ae6fd94c5f86780c648c6f3b217015900e7566051e931e32d6

        SHA512

        00c7220823a8e6a13483d4cf3a257b5236b82f2dc8e783d0ed393fabef2b0f246c35616d3edd070bf54280ea42fa3036a13d59c98250a67552be70606b344b78

      • memory/1064-12-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/1064-8-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/1064-6-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/1064-4-0x0000000000400000-0x000000000042C000-memory.dmp

        Filesize

        176KB

      • memory/1064-10-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/1064-11-0x0000000002C50000-0x0000000002C51000-memory.dmp

        Filesize

        4KB

      • memory/1064-7-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/1064-13-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/1064-14-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3216-33-0x0000000000D40000-0x0000000000D41000-memory.dmp

        Filesize

        4KB

      • memory/3216-32-0x0000000000D60000-0x0000000000D61000-memory.dmp

        Filesize

        4KB

      • memory/3980-28-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3980-34-0x0000000000070000-0x0000000000071000-memory.dmp

        Filesize

        4KB

      • memory/3980-39-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3980-40-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3980-36-0x0000000076F62000-0x0000000076F63000-memory.dmp

        Filesize

        4KB

      • memory/3980-35-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/3980-30-0x0000000076F62000-0x0000000076F63000-memory.dmp

        Filesize

        4KB

      • memory/3980-29-0x0000000003100000-0x0000000003101000-memory.dmp

        Filesize

        4KB

      • memory/3980-25-0x0000000000400000-0x0000000000421000-memory.dmp

        Filesize

        132KB

      • memory/4276-0-0x0000000010000000-0x0000000010055000-memory.dmp

        Filesize

        340KB